Root diameter

Pitch diameter

Minor diameter

Major diameter

Depth

2 x depth

0.5 x depth

0.25 x depth

Helix angle is less

Helix angle is more

Advance in clockwise turning

Advance in anticlockwise turning

Vee thread

Knuckle thread

Saw tooth thread

Ball screw thread

Triple start

Single start

Double start

Quadruple start (four)